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Finding the Fourth Proportional to 157,447.62, 217,269.54 and 89,455.14

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Solution

The fourth proportional to 157,447.62, 217,269.54 and 89,455.14 is: 123,443.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,447.62 : 217,269.54 = 89,455.14 : x
  2. Step 2: Convert to fraction form
    157,447.62/217,269.54 = 89,455.14/x
  3. Step 3: Cross multiply
    157,447.62x = 217,269.54 × 89,455.14
  4. Step 4: Simplify right side
    157,447.62x = 19,435,877,118.44
  5. Step 5: Solve for x
    x = 19,435,877,118.44/157,447.62
  6. Step 6: Final answer
    x = 123,443.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.